TLC1518IPW集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

TLC1518IPW属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的TLC1518IPW模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。

Maximum Throughput 400 KSPS

Built-In Reference and 8× FIFO

Differential/Integral Nonlinearity Error:

±0.5 LSB Max

Signal-to-Noise and Distortion Ratio:

59 dB, fi = 12 kHz

Spurious Free Dynamic Range: 72 dB,

fi = 12 kHz

SPI/DSP-Compatible Serial Interfaces With

SCLK up to 20 MHz

Single Supply 5 Vdc

Analog Input Range 0 V to Supply Voltage

With 500 kHz BW

Hardware Controlled and Programmable

Sampling Period

Low Operating Current (4 mA at 5.5 V

External Ref, 6 mA at 5.5 V, Internal Ref)

Power Down: Software/Hardware

Power-Down Mode (1 mA Max, Ext Ref),

Auto Power-Down Mode (5 mA, Ext Ref)

Programmable Auto-Channel Sweep

Pin Compatible, 12-Bit Upgrades Available

TLC2554, TLC2558)

description

The TLC1518 and TLC1514 are a family of high-performance, 10-bit, low power, 1.4 ms, CMOS SAR

analog-to-digital converters (ADC) which operate from a single 5 V power supply. These devices have three

digital inputs and a 3-state output [chip select (CS), serial input-output clock (SCLK), serial data input (SDI), and

serial data output (SDO)] that provide a direct 4-wire interface to the serial port of most popular host

microprocessors (SPI interface). When interfaced with a DSP, a frame sync (FS) signal is used to indicate the

start of a serial data frame.

In addition to a high-speed A/D converter and versatile control capability, these devices have an on-chip analog

multiplexer that can select any analog inputs or one of three internal self-test voltages. The sample-and-hold

function is automatically started after the fourth SCLK edge (normal sampling) or can be controlled by a special

pin, CSTART, to extend the sampling period (extended sampling). The normal sampling period can also be

programmed as short (12 SCLKs) or as long (24 SCLKs) to accommodate faster SCLK operation popular

among high-performance signal processors. The TLC1518 and TLC1514 are designed to operate with very low

power consumption. The power-saving feature is further enhanced with software/hardware/auto power down

modes and programmable conversion speeds. The converter uses the external SCLK as the source of the

conversion clock. There is a 4-V internal reference available and an optional external reference can also be used

to achieve maximum flexibility.